Calvana (2-Pack) Round Push-In Breather with 1-inch Tube for 1-1/4-inch Hole in Valve Cover – Includes Grommet, Spectre 4276 Compatible

The Calvana 2-pack round push-in breather with a 1-inch tube is designed for valve covers that feature a 1-1/4-inch opening. Each breather includes a rubber grommet and uses a round push-in design to seal securely while promoting airflow. This setup is ideal for engines that benefit from steady venting and a clean engine bay appearance.

Key benefits at a glance

• Internal baffle minimizes oil splash while maintaining steady ventilation.
• Durable steel body with a triple chrome plated finish adds long-lasting durability and a polished look.
• Versatile compatibility with 1-1/4-inch breather hole applications, suitable for a range of GM small- and big-block setups.

Universal fit and engine compatibility

Designed for valve covers with a 1-1/4 inch breather hole, these breathers work with engines such as 327, 350, 302, 454, and 502 from classic GM lineups, and pair well with Spectre 4276 accessories.

• Fits SBC, BBC, and SBF families
• Grommet included for a secure seal around the neck

Easy, reliable installation

Round push-in design, a snug 3-inch outer diameter, and a 1-inch neck help keep the breather in place during operation. A light touch of oil during install can help seating and sealing.

Durability and aesthetics

Triple chrome finish resists corrosion and cleans up easily, helping maintain a clean, showroom-ready engine bay while delivering dependable venting.

What’s in the box

• 2 round push-in breathers
• 2 rubber grommets for secure installation
• Designed for 1-1/ quart inch (1-1/4 inch) breather holes and 1-inch neck